Crossing the Mediterranean to Europe is “by far the world's deadliest” journey for migrants, with at least 33,761 reported to have died or gone missing between 2000 and 2017, a United Nations report finds. The report, released Friday from the International Organization for Migration (IOM), notes the highest number of fatalities, at 5,096, was recorded in 2016, when the short and relatively less dangerous route from Turkey to Greece was shut, following the European Union-Turkey deal.